|The car seat belt is a safety device for restraining the occupant during a collision and avoiding a secondary collision between the occupant and the steering wheel and the instrument panel during collision, or rushing out of the vehicle to cause death or injury. The car seat belt, which can also be called a seat belt, is a type of occupant restraint device. Car seat belts are recognized as the cheapest and most effective safety devices, and many countries in the vehicle's equipment are mandatory equipped with seat belts.|
(1) safety webbing design elements seat belts should be designed to meet the occupant's protective performance, reminder of the use of seat belts, and comfort and convenience. The design means for achieving the above points are the selection of the position of the seat belt adjuster, the specification of the seat belt and the auxiliary means employed.
(2) occupant protection performance the occupant protection performance requirements of the car seat belt are as follows: Restrain the occupant as early as possible; minimize the pressure on the occupant when restraining; keep the restraint position unchanged, so that the restraining force avoids the weaker part of the human body . As a means of achieving the above object, the use of the pretensioner and the force limiter described above provides a significant improvement in the performance of these aspects.